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Finding the Fourth Proportional to 168,145.80, 252,155.80 and 55,805.07

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Solution

The fourth proportional to 168,145.80, 252,155.80 and 55,805.07 is: 83,686.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,145.80 : 252,155.80 = 55,805.07 : x
  2. Step 2: Convert to fraction form
    168,145.80/252,155.80 = 55,805.07/x
  3. Step 3: Cross multiply
    168,145.80x = 252,155.80 × 55,805.07
  4. Step 4: Simplify right side
    168,145.80x = 14,071,572,069.91
  5. Step 5: Solve for x
    x = 14,071,572,069.91/168,145.80
  6. Step 6: Final answer
    x = 83,686.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.